Road form



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l ROAD FORM Filed Jan. '7, 1920 rf, M

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HERAULT A. TREYSTER, 0F MILWAUKEE, WISCONSIN, ASSIGNOR T0 METAL FORMSCORPORATION, 0F MILWAUKEE, WISCONSIN, A COMORTION.

ROAD FORM.

Application filed January 7, 1920. Serial No. 349,930.

To all whom t concern:

Be it known that I, HERAULT A. Tnns'rnu,

va citizen of the United States, residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certain new 'and usefulImprovements in Road Forms, of whichA the following 4is a specification.

The present invention consists of certain novel improvements in roadforms and is designed particularly for use preferably in theconstruction of concrete roads, though it may be employed in conjunctionwith roads of other types.

The primary object of the invention has been to provide a concrete orcomposition road form. j

A further object of the invention is the utilization of special meansfor reinforcing the concrete road form and for uniting the same with theroad in conjunction with the building of which it may be used.

Another object of the invention is the employment of special means forprotecting the top or upper edge of the concrete form whereby to preventpossibility of disintegration thereof, in the event the form is employedas a track or support for a machine utilized inthe road 'buildingoperation. ln this connection it m'ay be stated that today it is quitecommon practice where metal road'forms are employed in the constructionof concrete roads, to utilize the forms as rails of a track on which afinishing or tamping machine may be supported to move 4concurrently withthe road building operation. The design of the invention is to permit ofthe same service being performed by the road form herein set forth. 'f

Other objects of the invention 'have been the reinforcement of the roadform devised 'by me to make provision for the use of the form as a railor track element, and the provision of other specific features ofconstruction appertaining to the anchoring of the cap-plate to the formand the anchoring of the form relatively to the road-bed itself.

The term road. as used herein contemplates the various kinds ofhighways, pavements, sidewalks, and roads at present being constructedlargely throughout the country.

In obtaining an understanding of the invention, reference is to be hadto the following. description in conjunction with the annexed ldrawingsin which:

Figure 1 is a perspective view of aroad form embodying the invention,shown partially in section and illustrated in an o erative positionrelative to a, road or roa -bed of which it will form a part.

Figure 2 is a somewhat smaller view showing the cap-plate construction.

Figure 3 is a view illustrating a modification of the construction ofFigure 2.

Figure 4 is a fragmentary perspective view showing a modified form ofreinforcement.

Figures 5 and 6 are sectional views show' ing primarily the cap-plateconstructions of Figures 2 and 3, respectively, the form body beingitself illustrated in dotted lines.

The practical employment of my composition or concrete road form doesaway with the necessity, of course, of utilizing the metal road forms atpresent commonly employed, together with the labor incident to n theconstant removal and resetting of these forms during the progressiveconstruction of the road.

While I preferably utilize concrete composed of commonly knownaggregates in proportions found best for the purposes of my invention, Ido not wish tov be limited to such materials alone, as it is evidentthat vother substances may be employed to construct my forms. Theprinciple of my invention involves, of course, the employment of a formwhich ultimately becomes a part of the road itself constituting an'edgewall or section, vertically, one atl each side of the road, and firmlyunited with the road.

My form itself is of simpleconstructio'n,

being designated A in the drawings and comprising a molded section ofconcrete or suitable composition material, said sectionpreferably havinga straight inner wall and an outerwall which linclines toward the innerWall in an upward direction.`

Longitudinal reinforcing rods 'are imbedded in the form in itsconstruction and sions which project laterally from the form as seen inFigure 1 so as to become imbedded in the road B when the latter isconstructed, thus forming a uniting means between the form A and road B.

Figure 2 shows a cap-plate C protectin the `upper edge portion of theform 4'A an equipped with downwardly struck out tongues 3 to anchorv thesame in the body of the form. The' plate C will be applied to the form Ain the molding operation.

Figure 3 illustrates a construction like Figure 2 excepting that thecap-plate C has a skirt C on its inner edge and forming a verticalreinforcing element lending rigidity tothe form verticallyl thereof.Ostanding from the skirt C are anchorinotongues 4 to become imbedded inthe' road B.

The cap-plate C is an effective means to prevent possible disintegrationof the top of the form by lodgment of small stones or the like betweenthe same and the wheels of a machine which may travel along the form.

In Fi ure 4 the form is stren hened vertically y a corrugated plateequipped with the struck out lateral tongues 5 to become imbedded in theroad B. This construction of form may or may not have a ca -plate beingillustrated without the same.

linden practical conditions of service, my forms A are laid in spacedrelation upon the sub-grade on which the road is to be constructed. Thereinforcing rods 1 will preferably project slightly at one end of eachsection of the form A to enter recesses in the corresponding adIjacentend of a second section or' form. n this manner the forms may be alignedas regards the various sections. Once the forms are in position the roadmay be constructed as usual and if it be of concrete as illustrated, theforms will be firmly united therewith when the road hardens. Theforegoing, of course, involves a. new method of laymg concrete roads.

Having thus described my invention, what I claim as new is:

1. A road form constructed of composition material, combined with alongitudinal.

reinforcing element therefor, and anchoring elements connected to thelongitudinal element and projecting laterally from the form at a sidethereof so as to extend a considerable distance from said side to becomeembedded in and anchor the form to an abutting road bed of subsequentlyoonstructed plastic material.A

2. As a new article of manufacture, a

` composition road form, a cap plate at the top of the form forreinforcing the said form and protecting the same when used as a rail,and means carried by the form for anchoring yit to a road bedsubsequently constructed at one Side thereof.

3. As a new article of manufacture, a composition road form, a verticalreinforcing plate for the4 form, and anchoring elements connected to theplate and projecting laterally from the form for engagement with a roadbed subsequently constructed at one side of the form.

4. As a new article of manufacture, a road form, of plastic composition,`and a cap-plate for reinforcing said form and enabling it be used as arail to support port- 5. As a new article of manufacture, a

road form, of plastic composition, a capplate for said form, and meansanchoring the cap-plate to the form and for anchoring the form to aroad-bed built at one side of the form.

6. As a new article of manufacture, a composition road form,` alongitudinally extending reinforcing plate for the form, and anchoringelements stamped from the plate and bent laterally therefrom forengagement with a road bed subsequently constructed at one side of theform.

7. As a new article of manufacture, a composition road form, alongitudinally extending reinforcing plate having an edge portionthereof bent laterally to provide a cap for the ,upper edge of the form,and anchoring elements associated with the plate and project'n laterallyfrom the form lfor engagement wit a road bed subsequently constructed atone side of the form.

8. As al new article of manufacture, a composition road form, areinforcing plate extending longitudinally of the form and having anedge portion thereof bent laterally to provide a cap for the top of theform, anchoring members stamped from the said cap and embeddedv in theform, and a second set of anchoring members stamped from the plate andprojecting laterally from the form for engagement with a Subsequentlyconstructed -road bed.

9. As a new article of manufacture, an elongated roadl form adapted tobe used in constructin road beds of plastic material, said form avingacomparatively broad flat base and a narrower head portion the latteradapted to form a rail head to support the wheels of portable roadbuilding machinery, and also having a straight in ner wall to engage theplastic concrete of a road at a side of the subgrade, the outer side ofthe form inclining downwardly and outwardly, and the said outer side,the head portion and inner wall forming a substantially continuoussurface from the base atside, t e head ortion and` inner wall forming asubstantlally continuous surface from the base at the outer side to thebase at the inner side, the said head portion compris Langere ing ametallic member of substantially in' verted U form extending upwards asa part of the outer side of the form, horizontally to provide the headportion and thence downward as a part of the inner Wall of the form.

ll'. As a new article of manufacture an elongated road form adapted tobe used in constructing road beds of plastic material,

l" said form having a dat and comparatively broad hase and being taperedupwardly to a straight and narrow upper edge which is adapted to be usedas a rail for supporting portable road building machinery, said upperedge being reinforced and one of the faces of the forni being adapted toengage and support the' plastic material of the road bed. Y

In testimon v whereof aiix my si RAULT A. TRES ER.

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